CN103337124A - Net-fixed temperature sensing cable - Google Patents
Net-fixed temperature sensing cable Download PDFInfo
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- CN103337124A CN103337124A CN 201310283413 CN201310283413A CN103337124A CN 103337124 A CN103337124 A CN 103337124A CN 201310283413 CN201310283413 CN 201310283413 CN 201310283413 A CN201310283413 A CN 201310283413A CN 103337124 A CN103337124 A CN 103337124A
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- temperature sensing
- insulating layer
- coated
- ntc characteristic
- barrier layer
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Abstract
The invention discloses a net-fixed temperature sensing cable which can ensure that force allowing two detection conductors to be close mutually exists all the time between the two detection conductors, thereby improving the reliability of a temperature sensing detector. The temperature sensing cable comprises an insulating plastic sheath on the outer layer, and the two parallel detection conductors, an NTC (Negative Temperature Coefficient) characteristic blocking layer and a fusible insulating layer which are arranged in the sheath, wherein one detection conductor is coated with the NTC characteristic blocking layer; the NTC characteristic blocking layer is coated with the fusible insulating layer; the other detection conductor is in a silk net shape; and the fusible insulating layer is coated with the other detection conductor. The temperature sensing cable is simple in structure, and can effectively improve the reliability and the accuracy of the temperature sensing detector, so that a larger-scale fire is avoided.
Description
Technical field
The present invention relates to a kind of fire control equipment, relate in particular to a kind of net stationary temperature-sensitive cable.
Background technology
In the prior art, the analog linear temperature-sensing cable of NTC characteristic commonly used is a kind of broad-spectrum disaster detection cable.For example the patent No. is that 200520121813.2 Chinese patent discloses a kind of analog linear temperature-sensing fire detecting cable based on fused insulating layer, as shown in Figure 1, comprise two parallel detecting conductors, NTC characteristic barrier layer, fused insulating layer composition, stack is provided with described NTC characteristic barrier layer 3, fused insulating layer 4 between two parallel detecting conductors 1,2, and the temperature of fusion scope of described fused insulating layer 4 is 20 ℃～140 ℃.This cable is coated by ambroin crust 5.This cable has the reliability that improves the analog linear temperature-sensing detector and the advantage of using length.When fire occurring, the 3 resistance reductions along with the rising of temperature of NTC characteristic barrier layer, fused insulating layer 4 connect thereby make two detecting conductors 1,2 pass through the more and more lower NTC characteristic barrier layer of resistance 3, thereby heat detector is reported to the police along with rising fusing or the thawing of temperature.
Yet in reality is used, rising along with temperature, usually ambroin crust 5 melts and comes off, this just makes and does not make the two close power between two detecting conductors, thereby separate, two detecting conductors after the separation can't be by 3 contacts of NTC characteristic barrier layer, thereby can't finish warning, increase fire risk greatly.
Summary of the invention
The purpose of this invention is to provide a kind of net stationary temperature-sensitive cable, can guarantee to exist all the time between two detecting conductors to make the two close power mutually, thereby improve the reliability of heat detector.
For addressing the above problem, a kind of net stationary temperature-sensitive cable of the present invention, comprise outer field ambroin crust, and two parallel detecting conductors, NTC characteristic barrier layer, the fused insulating layer of outer intracutaneous, wherein a detecting conductor is coated with described NTC characteristic barrier layer outward respectively, is coated with fused insulating layer at described NTC characteristic barrier layer; Described another detecting conductor is mesh-like, and is coated on outside the described fused insulating layer.
Net stationary temperature-sensitive cable of the present invention, when fire occurring, along with the thawing disengaging of ambroin crust, resistance reduces the NTC characteristic barrier layer along with the rising of temperature simultaneously; Fused insulating layer is along with the rising of temperature fusing or melt and be squeezed out from the mesh of mesh-like detecting conductor or ooze out, but two detecting conductor can't break away from all the time mutually, thereby two detecting conductors are connected by the more and more lower NTC characteristic barrier layer of resistance, and heat detector is reported to the police.The present invention is simple in structure, can effectively improve reliability and the accuracy of heat detector, thereby avoids fairly large fire to take place.
Description of drawings
Fig. 1 is the structural representation of temperature-sensitive cable in the prior art;
Fig. 2 is the structural representation of temperature-sensitive cable among the present invention.
Embodiment
In order to make those skilled in the art person understand technical solution of the present invention better, the present invention is described in further detail below in conjunction with drawings and embodiments.
As shown in the figure, a kind of net stationary temperature-sensitive cable of the present invention, comprise outer field ambroin crust 5, and two parallel detecting conductors 1 of outer intracutaneous, 2 and NTC characteristic barrier layer 3, fused insulating layer 4, wherein be coated with described NTC characteristic barrier layer 3 respectively outside a detecting conductor 1, be coated with fused insulating layer 4 at described NTC characteristic barrier layer 3; Described another detecting conductor 2 is mesh-like, and is coated on outside the described fused insulating layer 4.The mesh of the detecting conductor 2 of this mesh-like is bigger, so that can extrude from mesh smoothly or ooze out when fused insulating layer takes place to melt or melts.
Net stationary temperature-sensitive cable of the present invention, when fire occurring, along with the thawing disengaging of ambroin crust, resistance reduces the NTC characteristic barrier layer along with the rising of temperature simultaneously; Fused insulating layer is along with the rising of temperature fusing or melt and be squeezed out from the mesh of mesh-like detecting conductor or ooze out, but two detecting conductor can't break away from all the time mutually, thereby two detecting conductors are connected by the more and more lower NTC characteristic barrier layer of resistance, and heat detector is reported to the police.The present invention is simple in structure, can effectively improve reliability and the accuracy of heat detector, thereby avoids fairly large fire to take place.
Claims (1)
1. net stationary temperature-sensitive cable, comprise outer field ambroin crust, and two parallel detecting conductors, NTC characteristic barrier layer, the fused insulating layer of outer intracutaneous, wherein a detecting conductor is coated with described NTC characteristic barrier layer outward respectively, is coated with fused insulating layer at described NTC characteristic barrier layer; Described another detecting conductor is mesh-like, and is coated on outside the described fused insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310283413 CN103337124A (en) | 2013-07-05 | 2013-07-05 | Net-fixed temperature sensing cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310283413 CN103337124A (en) | 2013-07-05 | 2013-07-05 | Net-fixed temperature sensing cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103337124A true CN103337124A (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310283413 Pending CN103337124A (en) | 2013-07-05 | 2013-07-05 | Net-fixed temperature sensing cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN103337124A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105809876A (en) * | 2016-05-06 | 2016-07-27 | 青岛中阳消防科技股份有限公司 | Line type temperature-sensing detection cable |
-
2013
- 2013-07-05 CN CN 201310283413 patent/CN103337124A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105809876A (en) * | 2016-05-06 | 2016-07-27 | 青岛中阳消防科技股份有限公司 | Line type temperature-sensing detection cable |
| CN105809876B (en) * | 2016-05-06 | 2018-11-02 | 曾以若 | A kind of line type temperature-sensitive detection cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Tianjin Sike Yingjie Technology Development Co., Ltd. Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131002 |